US20090044412A1 - Garden shears - Google Patents

Garden shears Download PDF

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Publication number
US20090044412A1
US20090044412A1 US11/889,508 US88950807A US2009044412A1 US 20090044412 A1 US20090044412 A1 US 20090044412A1 US 88950807 A US88950807 A US 88950807A US 2009044412 A1 US2009044412 A1 US 2009044412A1
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US
United States
Prior art keywords
handle
blade
slot
pivot
end
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/889,508
Inventor
Jung-Te Hsieh
Original Assignee
Jung-Te Hsieh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jung-Te Hsieh filed Critical Jung-Te Hsieh
Priority to US11/889,508 priority Critical patent/US20090044412A1/en
Publication of US20090044412A1 publication Critical patent/US20090044412A1/en
Abandoned legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/02Secateurs; Flower or fruit shears
    • A01G3/025Secateurs; Flower or fruit shears having elongated or extended handles
    • A01G3/0251Loppers, i.e. branch cutters with two handles

Abstract

A pair of garden shears has a first handle, a second handle, a first blade and a second blade. The second handle has a first slot defined through the second handle. The first blade is pivotally connected to the first handle with a first pivot, is pivotally connected to the second handle with a second pivot and has a curved second slot corresponding to the first slot. The second blade is pivotally connected to the first blade with a third pivot, is pivotally connected to the first handle with a fourth pivot, is pivotally connected to the second handle and the first blade with a fifth pivot and has a third slot. The fourth pivot extends through the first handle and slidably through the third slot. The fifth pivot slidably extends through the first slot and the curved second slot.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to a pair of garden shears, and more particularly to a pair of garden shears that is easily and convenient in use and has a capability of minimizing the force for using the shears.
  • 2. Description of Related Art
  • With reference to FIGS. 7 and 8, a conventional garden shears in accordance with the prior art comprises a first handle (70) provided with a first blade (74), a second handle (72) and a second blade (76). The first blade (74) is integrally formed on one end of the first handle (70). The second blade (76) is pivotally connected to the first blade (74) with a first pivot (80) and pivotally connected to the second handle (72) and has a curved first slot (762) and a straight second slot (764). A second pivot (82) extends through the second handle (72) and slidably through the curved first slot (762) to pivotally connect the second blade (76) to the second handle (72) at a first slidable pivoting point. A third pivot (84) extends through the second handle (72) and slidably through the straight second slot (764) to pivotally connect the second blade (76) to the second handle (72) at a second slidable pivoting point.
  • In use, the handles are held by a user with two hands and are squeezed to close to each other, and the second blade (76) will be pivoted relative to the second handle (72) and the first blade (74) so that the blades (74,76) are closed to cut or prune trees, flowers or grasses.
  • However, when the conventional shears is in use, only the second blade (76) is pivoted relative to the second handle (72) and the first blade (74) integrally formed on the first handle (70) is always kept stationary. Consequently, to cut or prune a tree, flower or grass, the second handle (72) with the second blade (76) pivotally connecting thereto is the mainly moving element of the conventional shears, and a right hand user or a left hand user always holds and activates the second handle (72) with his or her right/left hand. Therefore, the conventional shears always has to be turned over for fitting with different users, so the use of the conventional shears is inconvenient.
  • Additionally, because only the second blade (76) pivots relative to the second handle (72) during the cutting process, the magnifying effect to force from handles (70,72) to blades (74,76) of the conventional shears is not enough for cutting or pruning a branch of a tree with a large diameter. A large force is always needed for cutting a large tree branch or even impossible for that.
  • To overcome the shortcomings, the present invention tends to provide a garden shears to mitigate or obviate the aforementioned problems.
  • SUMMARY OF THE INVENTION
  • The main objective of the invention is to provide a pair of garden shears that is easily and convenient in use and has a capability of minimizing the force for using the shears. The pair of garden shears has a first handle, a second handle, a first blade and a second blade. The first handle has a pivotal end. The second handle has a pivotal end and a first slot defined through the pivotal end of the second handle. The first blade is pivotally connected to the pivotal end of the first handle with a first pivot, is pivotally connected to the second handle with a second pivot and has a cutting end, a pivotal end and a curved second slot. The pivotal end is pivotally connected to the second handle with the second pivot. The curved second slot corresponds to the first slot. The second blade is pivotally connected to the first blade with a third pivot, is pivotally connected to the first handle with a fourth pivot, is pivotally connected to the pivotal end of the second handle and the first blade with a fifth pivot and has a cutting end, a pivotal end and a third slot. The cutting end corresponds to the cutting end of the first blade. The fourth pivot extends through the first handle and slidably through the third slot to pivotally connect the second blade to the first handle. The fifth pivot slidably extends through the first slot and the curved second slot to pivotally connect the second blade to the second handle and the first blade.
  • Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a perspective view of a first embodiment of a pair of garden shears in accordance with the present invention;
  • FIG. 2 is an exploded perspective view of the garden shears in FIG. 1;
  • FIG. 3 is an enlarged operational side view of the garden shears showing the blades being opened;
  • FIG. 4 is an enlarged operational side view of the garden shears showing the movement of the blades during a cutting process;
  • FIG. 5 is an enlarged operational side view of the garden shears showing the blades being closed;
  • FIG. 6 is an enlarged side view of a second embodiment of a pair of garden shears in accordance with the present invention;
  • FIG. 7 is a side view of a conventional garden shears in accordance with the prior art; and
  • FIG. 8 is an exploded perspective view of the garden shears in FIG. 7.
  • DETAILED DESCRIPTION OF PREFERRED EMBODIMENT
  • With reference to FIGS. 1 and 2, a pair of garden shears in accordance with the present invention comprises a first handle (10), a second handle (20), a first blade (30) and a second blade (40). The first handle (10) is elongated and has a pivotal end (12) and a handle end opposite to the pivotal end (12). The second handle (20) is elongated and has a pivotal end (22), a handle end opposite to the pivotal end and a first slot (24), defined through the pivotal end (22). The first slot (24) is preferably straight and has a first end (242) away from the handle end of the second handle (20) and a second end (244) facing the handle end.
  • The first blade (30) is pivotally connected to the pivotal end (12) of the first handle (10) with a first pivot (50), is pivotally connected to the second handle (20) with a second pivot (52) and has a cutting end (32,32A), a pivotal end (34) and a curved second slot (36). The cutting end (32,32A) of the first blade (32) may be curved as shown in FIGS. 1 and 2, or straight as shown in FIG. 6. The pivotal end (34) is pivotally connected to the second handle (20) with the second pivot (52). The curved second slot (36) is defined through the first blade (30), corresponds to the first slot (24) and has a first end (362) and a second end (364).
  • The second blade (40) is pivotally connected to the first blade (30) with a third pivot (54), pivotally connected to the first handle (10) with a fourth pivot (56) and pivotally connected to the pivotal end (22) of the second handle (20) and the first blade (30) with a fifth pivot (58). The second blade (40) has a cutting end (42,42A), a pivotal end (44) and a third slot (46). The cutting end (42,42A) corresponds to the cutting end (32,32A) of the first blade (30) and may be curved as shown in FIGS. 1 and 2, or straight as shown in FIG. 6. The third slot (46) is defined through, preferably through the pivotal end (44) of the second blade (40) and may be straight. The third slot (46) has a first end (462) away from the cutting end (42) of the second blade (40) and a second end (464) facing the cutting end (42). The fourth pivot (56) extends through the first handle (10) and slidably through the third slot (46) to pivotally connect the second blade (42) to the first handle (10) at a first slidable pivoting point. The fifth pivot (58) slidably extends through the first slot (24) and the curved second slot (36) to pivotally connect the second blade (40) to the second handle (20) and the first blade (30) at a second slidable pivoting point. In addition, a sliding collar (48) is slidably held in the third slot (46), and the fourth pivot (56) extends through the sliding collar (48).
  • In use, with further reference to FIGS. 3 to 5, the handles (10,20) are firstly separated to open the blades (30,40). At this time, the fourth pivot (56) is located at the first end (462) of the third slot (46), and the fifth pivot (56) is located at the first end (242) of the first slot (24) and the first end (362) of the second slot (36). When the handles (10,20) are squeezed and closed, the blades (30,40) will simultaneously and respectively pivot relative to the handles (10,20) and each other and close to cut or prune an object. When the blades (30,40) are pivoted, the fourth pivot (56) slides along the third slot (46) toward the second end (464) of the third slot (46) and the fifth pivot (58) slides along the first and second slots (24,36) simultaneously toward the second ends (244,364) of the first and second slots (24,36).
  • During the cutting process, the blades (30,40) are pivoted relative to the handles (10,20) simultaneously and respectively no matter that the user keeps any one of the handles (10,20) stationary. Therefore, the operation of the garden shears in accordance with the present invention for any user is same, to turn over the garden shears for right/left hand user is unnecessary so that the garden shears is easy and convenient in use.
  • Additionally, with the movements of the pivots (56,58) along the slots (24,36,44), the pivoting points of the blades (30,40) are variable during the cutting process such that the force for cutting or pruning an object is reduced. Consequently, the force for using the shears can be minimized, and the shears can be applied to cut/prune an object with a large diameter and is convenient in use.
  • Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.

Claims (9)

1. A pair of garden shears comprising:
a first handle having a pivotal end;
a second handle having a pivotal end and a first slot defined through the pivotal end of the second handle;
a first blade pivotally connected to the pivotal end of the first handle with a first pivot, pivotally connected to the second handle with a second pivot and having
a cutting end;
a pivotal end pivotally connected to the second handle with the second pivot; and
a curved second slot corresponding to the first slot; and
a second blade pivotally connected to the first blade with a third pivot, pivotally connected to the first handle with a fourth pivot, pivotally connected to the pivotal end of the second handle and the first blade with a fifth pivot and having
a cutting end corresponding to the cutting end of the first blade;
a pivotal end; and
a third slot, wherein
the fourth pivot extends through the first handle and slidably through the third slot to pivotally connect the second blade to the first handle; and
the fifth pivot slidably extends through the first slot and the curved second slot to pivotally connect the second blade to the second handle and the first blade.
2. The garden shears as claimed in claim 1, wherein the third slot is defined through the pivotal end of the second blade.
3. The garden shears as claimed in claim 2 further comprising a sliding collar slidably held in the third slot, wherein
the fourth pivot extends through the sliding collar.
4. The garden shears as claimed in claim 3, wherein the first and third slots are straight.
5. The garden shears as claimed in claim 4, wherein the cutting ends of the first and second blades are curved.
6. The garden shears as claimed in claim 4, wherein the cutting ends of the first and second blades are straight.
7. The garden shears as claimed in claim 1 further comprising a sliding collar slidably held in the third slot, wherein
the fourth pivot extends through the sliding collar.
8. The garden shears as claimed in claim 7, wherein the first and third slots are straight.
9. The garden shears as claimed in claim 1, wherein the first and third slots are straight.
US11/889,508 2007-08-14 2007-08-14 Garden shears Abandoned US20090044412A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/889,508 US20090044412A1 (en) 2007-08-14 2007-08-14 Garden shears

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/889,508 US20090044412A1 (en) 2007-08-14 2007-08-14 Garden shears

Publications (1)

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US20090044412A1 true US20090044412A1 (en) 2009-02-19

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090217534A1 (en) * 2006-05-09 2009-09-03 Olavi Linden Cutting tool
US20100043238A1 (en) * 2008-08-19 2010-02-25 Fiskars Brands Finland Oy Ab Cutting tool
US20100043237A1 (en) * 2008-08-19 2010-02-25 Fiskars Brands Finland Oy Ab Cutting tool
US20100092771A1 (en) * 2006-12-22 2010-04-15 Agc Flat Glass Europe Sa Bending of glass sheets
US20100199502A1 (en) * 2007-05-22 2010-08-12 Fiskars Brands Finland Oy Ab Pruning shears
US20100223794A1 (en) * 2009-03-03 2010-09-09 Fiskars Brands, Inc. Cutting tool with variable mechanical advantage
US7895757B1 (en) * 2008-04-21 2011-03-01 Ho Cheng Garden Tools Co., Ltd. Gardening shears having energy-saving function
GB2478176A (en) * 2010-11-24 2011-08-31 Ho Cheng Garden Tools Co Ltd Gardening shears having driving arms
US20110258860A1 (en) * 2010-04-27 2011-10-27 Irwin Industrial Tool Company Optimized mechanical advantage cutting tool
GB2479982A (en) * 2010-04-27 2011-11-02 Irwin Ind Tool Co Optimized mechanical advantage cutting tool
US20120151781A1 (en) * 2010-12-16 2012-06-21 Ho Cheng Garden Tools Co., Ltd Garden shears
US20120186087A1 (en) * 2011-01-20 2012-07-26 Ho Cheng Garden Tools Co., Ltd. Garden shears
US20140053413A1 (en) * 2012-08-23 2014-02-27 Ho Cheng Garden Tools Co., Ltd. Garden shears
US20140215834A1 (en) * 2013-02-07 2014-08-07 Green Guard Industry Ltd. Multifunctional Pruning Shears for One Step Cutting and Step by Step Cutting
EP2796035A1 (en) * 2013-04-26 2014-10-29 Fiskars France SAS Hand-operated cutting tool
US20150237809A1 (en) * 2014-02-26 2015-08-27 Thomas Lin Gardening shears capable of switching cutting modes
USD838044S1 (en) 2017-03-15 2019-01-08 Maryette Jackson Toenail clipper
US10212891B1 (en) * 2018-02-13 2019-02-26 Jiin Haur Industrial Co. Ltd. Gardening shear

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1486538A (en) * 1922-03-02 1924-03-11 Benjamin F Nightlinger Pruning implement
US1533039A (en) * 1923-01-15 1925-04-07 Shirk Abner Multipower shears
US2074239A (en) * 1936-04-04 1937-03-16 Rush William Hand tool
US2579272A (en) * 1950-11-08 1951-12-18 Arthur R Ralston Jaw actuating means for tools
US2600036A (en) * 1948-10-04 1952-06-10 Stanley A Wertepny Pinking shears
US2816359A (en) * 1954-05-24 1957-12-17 Hogue Benton Shears
US20030221321A1 (en) * 2002-06-03 2003-12-04 Kun-Chia Cheng Hedge shears

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1486538A (en) * 1922-03-02 1924-03-11 Benjamin F Nightlinger Pruning implement
US1533039A (en) * 1923-01-15 1925-04-07 Shirk Abner Multipower shears
US2074239A (en) * 1936-04-04 1937-03-16 Rush William Hand tool
US2600036A (en) * 1948-10-04 1952-06-10 Stanley A Wertepny Pinking shears
US2579272A (en) * 1950-11-08 1951-12-18 Arthur R Ralston Jaw actuating means for tools
US2816359A (en) * 1954-05-24 1957-12-17 Hogue Benton Shears
US20030221321A1 (en) * 2002-06-03 2003-12-04 Kun-Chia Cheng Hedge shears

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8136252B2 (en) 2006-05-09 2012-03-20 Fiskars Brands Finland Oy Ab Cutting tool
US20090217534A1 (en) * 2006-05-09 2009-09-03 Olavi Linden Cutting tool
US20100092771A1 (en) * 2006-12-22 2010-04-15 Agc Flat Glass Europe Sa Bending of glass sheets
US20100199502A1 (en) * 2007-05-22 2010-08-12 Fiskars Brands Finland Oy Ab Pruning shears
US8220163B2 (en) 2007-05-22 2012-07-17 Fiskars Brands Finlay Oy AB Pruning shears
US7895757B1 (en) * 2008-04-21 2011-03-01 Ho Cheng Garden Tools Co., Ltd. Gardening shears having energy-saving function
US8220164B2 (en) 2008-08-19 2012-07-17 Fiskars Brands Finland Oy Ab Cutting tool
US20100043237A1 (en) * 2008-08-19 2010-02-25 Fiskars Brands Finland Oy Ab Cutting tool
US8458912B2 (en) 2008-08-19 2013-06-11 Fiskars Brands Finland Oy Ab Cutting tool
US20100043238A1 (en) * 2008-08-19 2010-02-25 Fiskars Brands Finland Oy Ab Cutting tool
US8046924B2 (en) 2009-03-03 2011-11-01 Fiskars Brands, Inc. Cutting tool with variable mechanical advantage
US20100223794A1 (en) * 2009-03-03 2010-09-09 Fiskars Brands, Inc. Cutting tool with variable mechanical advantage
WO2010101666A1 (en) * 2009-03-03 2010-09-10 Fiskars Brands, Inc. Cutting tool with variable mechanical advantage
USRE45488E1 (en) 2009-03-03 2015-04-28 Fiskars Brands, Inc. Cutting tool with variable mechanic advantage
GB2479982A (en) * 2010-04-27 2011-11-02 Irwin Ind Tool Co Optimized mechanical advantage cutting tool
US20110258860A1 (en) * 2010-04-27 2011-10-27 Irwin Industrial Tool Company Optimized mechanical advantage cutting tool
GB2478176B (en) * 2010-11-24 2012-08-01 Ho Cheng Garden Tools Co Ltd Gardening shears having an energy saving function
GB2478176A (en) * 2010-11-24 2011-08-31 Ho Cheng Garden Tools Co Ltd Gardening shears having driving arms
US20120151781A1 (en) * 2010-12-16 2012-06-21 Ho Cheng Garden Tools Co., Ltd Garden shears
US8572853B2 (en) * 2010-12-16 2013-11-05 Ho Cheng Garden Tools Co., Ltd. Garden shears
US8661691B2 (en) * 2011-01-20 2014-03-04 Ho Cheng Garden Tools Co., Ltd. Garden shears
US20120186087A1 (en) * 2011-01-20 2012-07-26 Ho Cheng Garden Tools Co., Ltd. Garden shears
US20140053413A1 (en) * 2012-08-23 2014-02-27 Ho Cheng Garden Tools Co., Ltd. Garden shears
US20140215834A1 (en) * 2013-02-07 2014-08-07 Green Guard Industry Ltd. Multifunctional Pruning Shears for One Step Cutting and Step by Step Cutting
US8881407B2 (en) * 2013-02-07 2014-11-11 Green Guard Industry Ltd. Multifunctional pruning shears for one step cutting and step by step cutting
EP2796035A1 (en) * 2013-04-26 2014-10-29 Fiskars France SAS Hand-operated cutting tool
FR3004891A1 (en) * 2013-04-26 2014-10-31 Fiskars France Sas Manual cutting tool
US9296116B2 (en) 2013-04-26 2016-03-29 Fiskars France Sas Manual cutting tool
US20150237809A1 (en) * 2014-02-26 2015-08-27 Thomas Lin Gardening shears capable of switching cutting modes
US9591808B2 (en) * 2014-02-26 2017-03-14 Thomas Lin Gardening shears capable of switching cutting modes
USD838044S1 (en) 2017-03-15 2019-01-08 Maryette Jackson Toenail clipper
US10212891B1 (en) * 2018-02-13 2019-02-26 Jiin Haur Industrial Co. Ltd. Gardening shear

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